SN74LS145 Ver la hoja de datos (PDF) - ON Semiconductor
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SN74LS145 Datasheet PDF : 8 Pages
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SN74LS145
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Min Typ Max Unit
Test Conditions
VIH
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage for
All Inputs
VIL
Input LOW Voltage
0.8
Guaranteed Input LOW Voltage for
V
All Inputs
VIK
IOH
VOL
IIH
IIL
ICC
Input Clamp Diode Voltage
Output HIGH Current
Output LOW Voltage
Input HIGH Current
Input LOW Current
Power Supply Current
–0.65 –1.5
250
0.25 0.4
0.35 0.5
2.3
3.0
20
0.1
–0.4
13
V
VCC = MIN, IIN = –18 mA
µA VCC = MIN, VOH = MAX
V
IOL = 12 mA
V
IOL = 24 mA
V
IOL = 80 mA
VCC = VCC MIN,
VIN = VIL or VIH
per Truth Table
µA VCC = MAX, VIN = 2.7 V
mA VCC = MAX, VIN = 7.0 V
mA VCC = MAX, VIN = 0.4 V
mA VCC = MAX, VIN = GND
AC CHARACTERISTICS (TA = 25°C)
Symbol
tPHL
tPLH
Parameter
Propagation Delay
Pn Input to Qn Output
Limits
Min Typ Max Unit
50
50
ns
Test Conditions
VCC = 5.0 V
CL = 45 pF
AC WAVEFORMS
VIN
VOUT
1.3 V
tPHL
1.3 V
1.3 V
tPLH
1.3 V
VIN
VOUT
1.3 V
tPHL
1.3 V
1.3 V
tPLH
1.3 V
Figure 1.
Figure 2.
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